CN109952667B - Coating film, battery module and mobile terminal - Google Patents

Coating film, battery module and mobile terminal Download PDF

Info

Publication number
CN109952667B
CN109952667B CN201780070440.6A CN201780070440A CN109952667B CN 109952667 B CN109952667 B CN 109952667B CN 201780070440 A CN201780070440 A CN 201780070440A CN 109952667 B CN109952667 B CN 109952667B
Authority
CN
China
Prior art keywords
wrapping
battery
adhesive
glue
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201780070440.6A
Other languages
Chinese (zh)
Other versions
CN109952667A (en
Inventor
高棕禹
王洪星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of CN109952667A publication Critical patent/CN109952667A/en
Application granted granted Critical
Publication of CN109952667B publication Critical patent/CN109952667B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0262—Details of the structure or mounting of specific components for a battery compartment
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/33—Applications of adhesives in processes or use of adhesives in the form of films or foils for batteries or fuel cells
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
    • C09J2301/1242—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape the opposite adhesive layers being different
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/18—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet characterized by perforations in the adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
    • C09J2301/204—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive coating being discontinuous
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Computer Hardware Design (AREA)
  • Organic Chemistry (AREA)
  • Battery Mounting, Suspending (AREA)
  • Packages (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Telephone Set Structure (AREA)

Abstract

The application provides a coating film, a battery module and a mobile terminal, wherein the coating film comprises a wrapping part and a lifting part, and the lifting part and the wrapping part are divided by a tearing line; when the pulling part is pulled, the tearing line is broken, and the pulling part is separated from the wrapping part; on the wrapping surface of the wrapping part, the area wrapping the side wall of the battery is a glue-free area, and the other areas are provided with first bonding glue; the bonding surface of the wrapping part is provided with second bonding glue; a part of the wrapping surface of the lifting part is provided with third bonding glue; the bonding surface of the lifting part is a glue-free area. In the above embodiment, the cover film is formed by adopting an integral structure, and is divided into two different areas by the tearing line, when the battery is required to be disassembled, the pulling part divided by the tearing line is only required to be pulled to separate the pulling part from the wrapping part, and the battery is pulled out from the battery bin, so that the battery is convenient to disassemble, and the production and the processing of the cover film are convenient.

Description

Coating film, battery module and mobile terminal
Technical Field
The application relates to the technical field of mobile terminals, in particular to a coating film, a battery module and a mobile terminal.
Background
The battery is a necessary product of the mobile terminal, in the prior art, the battery needs to be placed in a battery compartment of the mobile terminal, and the battery needs to be fixed, and there are various fixing methods of the battery adopted in the prior art, as shown in fig. 1, the fixing mode of fig. 1 is a scheme of adopting an adhesive tape 3, that is, the battery 2 is adhered into the battery compartment 1 through the adhesive tape 3, and the adhesion strength is high. However, in the method, the battery 2 is not easy to detach in the repair process, and a tool is needed, so that the package of the battery 2 is easy to damage in the detachment process, and potential safety hazards are caused.
And a fixing mode of the easy-to-pull adhesive tape 4 is also adopted as shown in fig. 2, namely, the battery 2 is adhered to the battery compartment 1 through the easy-to-pull adhesive tape 4, when the battery 2 is disassembled, the handle 7 of the easy-to-pull adhesive tape 4 is pulled, the viscosity of the easy-to-pull adhesive tape 4 is reduced in the stretching process, and the battery 2 is taken out after being pulled out. However, the pulling-out yield of the easy-to-pull adhesive tape 4 is greatly influenced by the thickness and the pulling-out angle of the adhesive tape, and the requirement is met on the structural design of the battery bin 1; compared with the gum proposal, the cost is high.
Also as shown in fig. 3, the solution of wrapping the battery is that the battery 2 is packaged by a detachable wrapping film 5, and a handle structure 6 is added on the battery 2 and is adhered to the battery compartment 1 by a common adhesive tape 3; when the battery 2 is detached, the handle structure 6 is pulled up after the detachable wrapping film 5 is opened, and the battery 2 is separated from the detachable wrapping film 5 and taken out of the battery 2. However, in this method, the detachable wrapping film 5 is separated from the handle structure 6, and the manufacturing process and the mounting process are complicated and high in cost.
Disclosure of Invention
The application provides a coating film, a battery module and a mobile terminal, which are used for providing a simple and convenient battery disassembling structure.
In a first aspect, a wrapping film is provided, which comprises a wrapping part and a lifting part, wherein the lifting part and the wrapping part are divided by a tearing line; when the pulling part is pulled, the tearing line is broken, and the pulling part is separated from the wrapping part;
the wrapping film is provided with a wrapping surface facing the battery and an adhesive surface facing the battery bin; wherein,
on the wrapping surface of the wrapping part, the area wrapping the side wall of the battery is a glue-free area, and a second area except the glue-free area is provided with the first bonding glue;
the bonding surface in the wrapping part is provided with second bonding glue, and the bonding force of the first bonding glue is smaller than that of the second bonding glue;
a part of the wrapping surface of the lifting part is provided with third bonding glue; the bonding surface of the lifting part is a glue-free area.
In the above embodiment, the cover film is formed by adopting an integral structure, and is divided into two different areas by the tearing line, when the battery is required to be disassembled, the pulling part divided by the tearing line is only required to be pulled to separate the pulling part from the wrapping part, and the battery is pulled out from the battery bin, so that the battery is convenient to disassemble, and the production and the processing of the cover film are convenient.
In a particular embodiment, the third adhesive glue is the same as the first adhesive glue.
In a particular embodiment, the third adhesive glue is different from the first adhesive glue, and the adhesive force of the third adhesive glue is greater than the adhesive force of the first adhesive glue. Due to the fact that the bonding force is different, the bonding force between the pulling portion and the battery is larger than that between the wrapping portion and the battery, and smooth pulling of the battery is further guaranteed.
In a specific embodiment, the number of the tear lines is two, the two tear lines are arranged in parallel, the coating film is provided with a through hole, and each tear line extends to the through hole. Through two tear lines and the through-hole that sets up for carry the portion of drawing and can part with parcel portion when the atress, thereby can pull out the battery.
In a specific embodiment, the tearing line is one, the tearing line is U-shaped, and two ends of the tearing line extend to the same side edge of the wrapping film. Through the U-shaped tear lines that set up for the portion of carrying to draw can part with parcel portion when the atress, thereby can pull out the battery.
In a particular embodiment, one side of the cladding film has a protrusion extending out of a side edge of the cladding film; the tear line extends outward to the boss.
In a particular embodiment, the edge position of the projection is provided with a notch connected to each tear line. The lifting part and the wrapping part are convenient to separate.
In a specific embodiment, the part of the lifting part extending into the convex part is a glue-free area. The battery is convenient to disassemble.
In a particular embodiment, the pull-up portion is located outside of the boss. The force application to the lifting part is facilitated, and the battery is further conveniently detached.
In a particular embodiment, the glue-free zone on the wrapper divides the first adhesive glue into three parallel zones. The wrapping effect is improved.
In a particular embodiment, the tear line is a double layer tear line. The lifting part and the wrapping part are convenient to separate.
In a specific embodiment, a protective film is attached to the bonding surface of the coating film. To protect the second adhesive glue.
In a specific embodiment, a plurality of bonding areas are arranged in the bonding surface of the wrapping film, and each bonding area is provided with the second bonding glue. The bonding effect is improved.
In a specific embodiment, the pulling portion is provided at an intermediate position on one side of the cover film. The battery is convenient to pull out.
In a specific embodiment, the pulling part crosses the side wall of the cell, and one side of the cell side wall is a glue-free area, and the other side of the cell side wall is a glue-containing area.
In a second aspect, a battery module is provided, which includes a battery and the wrapping film of any one of the above items wrapping the battery.
In the above embodiment, the coating film adopts an integrated structure to be divided into two different areas through the tear line, when the battery is required to be disassembled, the pulling part divided through the tear line is only required to be pulled to separate the pulling part from the wrapping part, and the battery is driven to be pulled out from the battery bin, so that the battery is convenient to disassemble, and the production and the processing of the coating film are convenient.
In a third aspect, a mobile terminal is provided, which includes a housing, a battery compartment disposed in the housing, and a battery fixed in the battery compartment, wherein the battery is wrapped with any one of the above wrapping films.
In the above embodiment, the coating film adopts an integrated structure to be divided into two different areas through the tear line, when the battery is required to be disassembled, the pulling part divided through the tear line is only required to be pulled to separate the pulling part from the wrapping part, and the battery is driven to be pulled out from the battery bin, so that the battery is convenient to disassemble, and the production and the processing of the coating film are convenient.
Drawings
FIG. 1 is a schematic view of a prior art battery installation;
FIG. 2 is a schematic view of a prior art battery installation;
FIG. 3 is a schematic view of a prior art battery installation;
FIG. 4 is a schematic view of a wrapping surface of a wrapping film provided in an embodiment of the present application;
fig. 5 is a schematic diagram of a bonding surface of a cover film according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of another cover film provided in the present application;
FIG. 7 is a reference diagram illustrating a usage status of a cover film according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a battery module according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.
Fig. 4 shows a configuration of the cover film according to the embodiment of the present invention when the cover film is not used, and fig. 7 shows a schematic diagram of the cover film according to the embodiment of the present invention when the cover film is wrapped around a battery.
For the convenience of understanding the cover film provided in the embodiment of the present application, first, four surfaces of the battery 20 except for surfaces at both ends are named, where a surface of the battery 20, which faces the battery compartment when being loaded into the battery compartment, is a bottom surface, i.e., a first surface (not shown in the figure), a surface facing away from the first surface is a second surface 21, and two surfaces adjacent to the first surface and the second surface are side surfaces.
Referring to fig. 4 and 5, a wrapping film 10 provided in the embodiment of the present application is an integrated structure, and the wrapping film 10 has two opposite surfaces, namely an adhesive surface and a wrapping surface; the surface shown in fig. 4 is a wrapping surface, the wrapping surface is a surface of the wrapping film 10 facing the battery 20 when wrapping the battery 20, the surface shown in fig. 5 is a bonding surface, the bonding surface is a surface facing away from the wrapping surface, and when the battery 20 is placed in the battery compartment, the bonding surface faces the battery compartment and is used for bonding with the battery compartment.
After the relative relationship between the bonding side and the covering side of the covering film 10 is described, the area structure of the covering film 10 will be described, and it should be understood that each area structure divided on the covering film 10 is the physical structure on the covering film 10, and the physical structure divided on the covering film 10 is: the wrapping part 11 and the lifting part 12, wherein the wrapping part 11 has two surfaces, which are respectively an adhesive surface and a wrapping surface of the coating film 10. The pulling portion 11 has two surfaces, which are an adhesive surface and a wrapping surface of the cover film 10.
Referring to the cover film 10 in fig. 4, the cover film 10 of the battery 20 provided in the embodiment of the present application is divided into a covering portion 11 and a pulling portion 12, wherein the covering portion 11 is used for covering the battery 20, and the pulling portion 12 is used as an acting region of external force when the battery 20 is taken out. The wrapping film 10 is provided with a tear line 14 for distinguishing two region structures, and the tear line 14 is drawn on the wrapping film 10 to separate the wrapping portion 11 from the pulling portion 12. The tearing line 14 forms a structure of partial disconnection and partial connection between the pulling part 12 and the wrapping part 11, and when the pulling part 12 is pulled by external force, the tearing line 14 is disconnected, so that the wrapping part 11 and the pulling part 12 can be disconnected, and two independent structures are formed.
When the wrapping film 10 is connected with the battery 20, a first adhesive glue (not numbered in the figure) is provided on the wrapping surface in the wrapping part 11, the wrapping part 11 is adhered with the battery 20 through the first adhesive glue, so that the wrapping part 11 can wrap the battery 20, and furthermore, when the battery 20 is taken out, in order to facilitate the separation of the wrapping film 10 from the battery 20, the area on the wrapping surface of the wrapping part 11 for wrapping the two sides of the battery 20 is set to be a glue-free area, such as the shaded area on the wrapping part 11 shown in fig. 4. The second area except the glue-free area is provided with first bonding glue. When the wrapping film 10 wraps the battery 20, the non-adhesive region is not adhesively connected with the battery 20, so that the wrapping film 10 is detached from the battery 20. The wrapping surface of the lifting part 12 is also partially provided with a third adhesive glue, so that when the wrapping part 11 wraps the battery 20, the lifting part 12 can be adhered to the battery 20, and the battery 20 can be driven when the lifting part 12 is pulled.
When the cover film 10 covering the battery 20 is placed in the battery compartment, the adhesive surface of the cover film 10 has a second adhesive, and the cover film 10 is adhesively connected to the bottom surface of the battery compartment by the second adhesive. In a specific arrangement, the adhesive force of the first adhesive is smaller than the adhesive force of the second adhesive. With this arrangement, when the battery 20 is taken out, the cover film 10 can be bonded in the battery compartment without being pulled out together with the battery 20. In addition, in order to facilitate pulling the battery 20, the adhesive surface in the lifting portion 12 is a glue-free area, so that when the cover film 10 is fixed with the battery compartment, the lifting portion 12 is not adhered to the bottom surface of the battery compartment, and the lifting portion 12 is conveniently pulled.
As can be seen from the above description, the cover film 10 provided in the embodiment of the present application is formed by an integral structure, and the tear line 14 divides the cover film 10 into two different regions, when the battery 20 needs to be detached, the pulling portion 12 divided by the tear line 14 is only required to be pulled to separate the pulling portion 12 from the covering portion 11, and the battery 20 is pulled out from the battery compartment, so as to facilitate detachment of the battery 20.
For a detailed understanding of the specific structure and principles of the cover film 10 provided by the embodiments of the present application, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
Referring first to fig. 4 and 5, a wrapping film 10 provided in the embodiment of the present application is an integrally formed film body, and the film body includes two opposite surfaces, namely a wrapping surface and an adhesive surface, where as shown in fig. 4, the wrapping surface is divided into: a first surface-wrap region 111 that conforms to a first surface of the battery 20; a side wrapping area 112 attached to both sides; a second surface wrapping area 113 attached to the second surface 21, as shown in fig. 8, two second surface wrapping areas 113 partially wrap the second surface 21 of the battery 20; as shown in fig. 5, the adhesive surface is provided with a first surface adhesive region 114 only in the region opposite to the first surface wrapping region 111, and the other regions on the adhesive surface are adhesive-free regions.
According to the function, the coating film 10 is divided into two parts, namely a wrapping part 11 and a lifting part 12, and the wrapping part 11 and the lifting part 12 are divided into two parts through a tearing line 14, in a specific embodiment, the tearing line 14 is a double-layer tearing line, the tearing line 14 shown in fig. 4 is the double-layer tearing line, and when the double-layer tearing line is adopted, the lifting part 12 and the wrapping part 11 can be separated by a small force. When the tear line 14 is not broken, the wrapping portion 11 and the lifting portion 12 are of an integral structure, when the tear line 14 is broken, the wrapping portion 11 and the lifting portion 12 are separated, the wrapping portion 11 is left in the battery compartment, and the lifting portion 12 is connected with the battery 20 and pulls the battery 20 out of the wrapping portion 11.
In order to ensure that the pulling portion 12 and the wrapping portion 11 can be separated, two different structural manners are adopted in the wrapping film 10 provided in the embodiment of the present application, one of which is shown in fig. 4, in which two tear lines 14 are adopted to separate two sides of the pulling portion 12 from the wrapping portion 11, and a through hole 15 is further provided in the wrapping film 10, and each tear line 14 extends to the through hole 15, so that the pulling portion 12 is separated from the wrapping portion 11 by the two tear lines 14 and the through hole 15. In the specific arrangement, the two tear lines 14 are arranged in parallel or approximately in parallel, and the end of each tear line 14 extends to the same side of the wrapping film 10, as shown in fig. 4, one end of each tear line 14 is located at the through hole 15, the other end of each tear line 14 is located at the edge of the wrapping film 10, the divided wrapping portions 11 form a structure shaped like a Chinese character 'ao', and the pulling portion 12 is inserted into a rectangular structure in the recessed portion of the wrapping portion 11. In use, the pulling part 12 is pulled, the two tearing lines 14 are broken, and when the tearing lines 14 are broken to the position of the through hole 15, the pulling part 12 is separated from the wrapping part 11.
In another embodiment, as shown in fig. 6, the tear line 14 is a single line and has a U-shape, and both ends of the U-shaped tear line 14 extend to the same side of the cover film 10, so that the cover film 10 is partially divided to form the pull-up portion 12. In use, the pull portion 12 is pulled, the tear line 14 is gradually broken, and when the tear line 14 is completely broken, the pull portion 12 is disconnected from the wrapping portion 11. It should be understood that although the present embodiment provides a U-shaped tear line 14, other shapes of tear lines 14 may be used in the present embodiment, and it is only necessary to ensure that the tear line 14 can distinguish the pulling portion 12 from the wrapping portion 11 when the tear line is torn. If the tear line 14 is a broken line, the tear line 14 may be formed by two parallel tear lines 14 and a V-shaped tear line 14 to define the lifting portion 12.
As can be seen from the above description, the pulling part 12 may be divided in different manners, and when the pulling part 12 is divided, the pulling part 12 may be located at different positions on one side of the cover film 10, and the pulling part 12 may be located near the upper portion of the cover film 10 or near the lower portion of the cover film 10 with the placement direction of the cover film 10 shown in fig. 3 as a reference direction, but in a specific embodiment, the pulling part 12 is disposed at a middle position on one side of the cover film 10, and at this time, the adhesion force on both sides of the pulling part 12 is relatively uniform, so as to facilitate the pulling of the battery 20 from the cover film 10.
In the above-described wrapping portion 11 and the pulling portion 12, the wrapping portion 11 needs to be connected to the battery 20 and the battery compartment, respectively, and the pulling portion 12 needs to be connected to the battery 20. The connection between the wrapping portion 11 and the lifting portion 12 and the battery 20 and the battery compartment will be described in detail.
First, as shown in fig. 4 and 6, the first adhesive is divided into three parallel regions in the wrapping portion 11 by the non-adhesive region on the wrapping surface. Specifically, in the wrapping surface of the wrapping portion 11, the first surface wrapping area 111 and the two second surface wrapping areas 113 are respectively provided with a first adhesive glue, and the side wrapping area 112 is a glue-free area, so that when the wrapping surface on the wrapping portion 11 wraps the battery 20, the wrapping portion 11 is respectively adhered to the first surface and the second surface 21 of the battery 20, as shown in fig. 7 and 8, where fig. 7 shows a case when the first surface wrapping area 111 is adhered to the battery 20, at this time, the second surface wrapping areas 113 are respectively located at two sides of the battery 20, as shown in fig. 8, when the second surface wrapping area 113 wraps the battery 20, the second surface wrapping area 113 only wraps partial areas of two side edges of the second surface 21. Further, since the side wrapping region 112 is a non-adhesive region, the side wrapping region 112 does not adhere to the side of the battery 20 when the wrapping surface wraps the battery 20, and the battery 20 can be more easily pulled out of the wrapping film 10. For the bonding surface of the wrapping portion 11, the second adhesive is disposed on the first surface bonding area 114, and the rest areas are non-adhesive areas. When the battery 20 wrapped with the wrapping film 10 is fixed in the battery compartment, the second adhesive glue arranged on the adhesive surface of the wrapping film 10 is in adhesive connection with the bottom wall of the battery compartment, when the second adhesive glue is specifically arranged, a plurality of adhesive areas 115 are arranged in the adhesive surface of the wrapping film 10, and each adhesive area 115 is provided with the second adhesive glue. As shown in fig. 5, a plurality of adhesive regions 115 are formed in a single row, and when there is an adhesive region 115 crossing the tear line 14, the adhesive region 115 is interrupted to prevent the lift portion 12 from adhering.
Wherein the adhesive may be applied to the surface of the adhesive region 115, or may be applied by other known methods (e.g., using double-sided adhesive), as long as other methods for ensuring that the adhesive region 115 can have adhesion to the battery compartment can be used in the embodiments of the present invention.
With regard to the pull portion 12, the pull portion 12 is connected only to the battery 20, and the first surface adhesive region 114 on the pull portion 12 is a glue-free region, i.e., as shown in fig. 5, the glue-coated region 115 is interrupted as it approaches the tear line 14, thereby avoiding glue attachment on the pull portion 12. In addition, in order to connect the pulling part 12 with the battery 20, a third adhesive glue is partially arranged on the pulling part 12, and the wrapping surface of the pulling part 12 as shown in fig. 4 is at least partially provided with the third adhesive glue. When the cover film 10 wraps the battery 20, the lifting portion 12 crosses the sidewall of the battery 20 and is in contact with the first surface, the one side surface and the second surface 21 of the battery 20, and a region of the lifting portion 12 on one side of the sidewall of the battery 20 is a glue-free region (shown as a shaded region on the lifting portion 12 in fig. 4), and a region on the other side is a glue-containing region, that is, the first surface wrapping region 111 on the lifting portion 12 has the first adhesive glue and the third adhesive glue, and the side wrapping region 112 and the second surface wrapping region 113 on the lifting portion 12 are glue-free regions. In this structure, since the edge of the pull-up portion 12 is not adhered to the battery 20, the pull-up portion 12 can be easily pulled up.
Meanwhile, when the above structure is adopted, it should be possible to ensure that the pulling portion 12 has a sufficient bonding area with the first surface of the battery 20 to withstand the pulling force when the battery 20 is pulled out. Wherein the third adhesive glue may be the same as the first adhesive glue. Further, the third adhesive glue is different from the first adhesive glue, and when the third adhesive glue is different from the first adhesive glue, the adhesive force of the third adhesive glue is greater than that of the first adhesive glue, so that the adhesive force between the lifting portion 12 and the battery 20 is greater than that between the wrapping portion 11 and the battery 20, and the smooth pulling of the battery 20 out of the wrapping film 10 by the lifting portion 12 is further ensured.
In order to facilitate separation of the pulling portion 12 from the wrapping portion 11, in the present embodiment, the structure of the clad film 10 on the side where the pulling portion 12 is located is improved, and as shown in fig. 4 and 6, the clad film 10 has a protruding portion 13 extending outward from the side of the clad film 10 on one side; the tear lines 14 extend outward to the protruding portion 13, wherein a part of the protruding portion 13 belongs to the wrapping portion 11, and another part belongs to the pulling portion 12, and on the protruding portion 13, a notch 131 connected to each tear line 14 is provided at an edge position of the protruding portion 13. When the pulling part 12 needs to be pulled, the position of the notch 131 is provided with low strength, so that the pulling part 12 is conveniently separated from the wrapping part 11. And more preferably, the pulling portion 12 extends to the outside of the protruding portion 13 to form a convex structure, as shown in fig. 8, the portion of the pulling portion 12 extending to the protruding portion 13 can be used as a stress area of the pulling portion 12, when the pulling portion 12 is not separated from the wrapping portion 11, the pulling portion 12 is separated from the wrapping portion 11 by holding the region where the pulling portion 12 protrudes to the protruding portion 13 to pull the pulling portion 12, and the battery 20 is pulled out.
As can be seen from the above description, by providing the structure protruding to the convex portion 13 at the lifting portion 12, the lifting portion 12 can be pulled easily, and further, the lifting portion 12 can be pulled easily, and the portion of the lifting portion 12 extending into the convex portion 13 is a glue-free area.
It should be understood that, when the cover film 10 is not wrapped around the battery 20, in order to prevent the first adhesive glue and the second adhesive glue from adhering impurities, it is preferable that a protective film (not shown) is attached to the adhesive surface of the cover film 10 to protect the second adhesive glue. Similarly, a protective film is attached to the wrapping surface of the wrapping film 10 to protect the first adhesive.
In addition, in order to ensure that the cover film 10 can be left in the battery compartment when the battery 20 is pulled out, when the first adhesive glue and the second adhesive glue are selected, the adhesive force of the first adhesive glue is smaller than that of the second adhesive glue. The first adhesive glue and the second adhesive glue can adopt glue commonly used in the prior art, such as hot melt glue.
As can be seen from the above description, the cover film 10 provided in the embodiment of the present application is manufactured in an integrated structure, and the manufactured cover film 10 has the functions of covering the battery 20 and detaching the battery 20, so that the structure is simplified and the cost is reduced compared with the structure of covering and detaching the battery 20 shown in fig. 3.
As shown in fig. 8, the embodiment of the present application also provides a battery 20 module, where the battery 20 module includes a battery 20 and a cover film 10 wrapping the battery 20.
In the above embodiment, when wrapping the battery 20, it is necessary to peel off the protective film on the wrapping film 10, and thereafter, adhere to the battery 20 by the first adhesive glue and wrap the battery 20. The coating film 10 is of an integral structure, the coating film 10 is divided into two different areas through the tear line 14, when the battery 20 needs to be disassembled, the lifting part 12 divided through the tear line 14 is only required to be lifted, so that the lifting part 12 is separated from the wrapping part 11, the battery 20 is driven to be pulled out from the battery bin, the battery 20 is convenient to disassemble, and the production and the processing of the coating film 10 are convenient.
The embodiment of the application further provides a mobile terminal, and the mobile terminal can be a common mobile phone, a tablet computer or a notebook computer. The mobile terminal comprises a shell, a battery compartment arranged in the shell, and a battery 20 fixed in the battery compartment, wherein the battery 20 is wrapped by any one of the wrapping films 10.
In the above embodiment, when wrapping the battery 20, it is necessary to peel off the protective film on the wrapping film 10, and thereafter, adhere to the battery 20 by the first adhesive glue and wrap the battery 20. When the battery 20 module is mounted in the battery compartment, the protective film for protecting the second adhesive glue on the cover film 10 needs to be uncovered, and then the battery 20 module is placed in the battery compartment and is adhesively connected with the bottom wall of the battery compartment through the second adhesive glue. In the above scheme, the coating film 10 is formed by adopting an integral structure, and the coating film 10 is divided into two different areas by the tear line 14, when the battery 20 needs to be detached, the pulling part 12 separated by the tear line 14 is only required to be pulled to separate the pulling part 12 from the wrapping part 11, and the battery 20 is driven to be pulled out from the battery compartment, so that the battery 20 is detached conveniently, and the production and processing of the coating film 10 are facilitated.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (13)

1. The coating film is characterized by comprising a wrapping part and a lifting part, wherein the lifting part and the wrapping part are divided by a tearing line; when the pulling part is pulled, the tearing line is broken, and the pulling part is separated from the wrapping part;
the wrapping film is provided with a wrapping surface facing the battery and an adhesive surface facing the battery bin; wherein,
on the wrapping surface of the wrapping part, the area wrapping the side wall of the battery is a glue-free area, and a second area except the glue-free area is provided with first bonding glue;
the bonding surface of the wrapping part is provided with second bonding glue, and the bonding force of the first bonding glue is smaller than that of the second bonding glue;
a part of the wrapping surface of the lifting part is provided with third bonding glue; the bonding surface of the lifting part is a glue-free area;
one side of the cladding film is provided with a convex part extending out of the side edge of the cladding film; the tear line extends outward to the boss.
2. The cover film as claimed in claim 1, wherein the two tear lines are arranged in parallel, and the cover film is provided with through holes, each tear line extending to the through hole.
3. The cover of claim 1, wherein the tear line is one, the tear line is U-shaped, and both ends of the tear line extend to the same side of the cover.
4. The cover of claim 1, wherein the edge of the tab is provided with a notch in communication with each tear line.
5. The cover film as claimed in claim 4, wherein the portion of the lifting portion extending into the raised portion is a glue-free zone.
6. The coated film according to any one of claims 1 to 5, wherein the pulling portion is located outside the convex portion.
7. The coated film according to any one of claims 1 to 5, wherein the adhesive-free area on the wrapping surface divides the first adhesive glue into three parallel areas.
8. The coated film according to any one of claims 1 to 5, wherein the tear line is a double-layer tear line.
9. The coating film according to any one of claims 1 to 5, wherein a protective film is attached to an adhesive surface of the coating film.
10. The coating film according to any one of claims 1 to 5, wherein the third adhesive glue is the same as the first adhesive glue.
11. The coating film according to any one of claims 1 to 5, wherein the third adhesive is different from the first adhesive, and an adhesive force of the third adhesive is larger than an adhesive force of the first adhesive.
12. A battery module comprising a battery and the coating film according to any one of claims 1 to 11 covering the battery.
13. A mobile terminal is characterized by comprising a shell, a battery compartment arranged in the shell, and a battery fixed in the battery compartment, wherein the battery is wrapped with the wrapping film according to any one of claims 1-11.
CN201780070440.6A 2017-10-27 2017-10-27 Coating film, battery module and mobile terminal Active CN109952667B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/108122 WO2019080121A1 (en) 2017-10-27 2017-10-27 Coating film, battery module and mobile terminal

Publications (2)

Publication Number Publication Date
CN109952667A CN109952667A (en) 2019-06-28
CN109952667B true CN109952667B (en) 2021-06-22

Family

ID=66247094

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201780070440.6A Active CN109952667B (en) 2017-10-27 2017-10-27 Coating film, battery module and mobile terminal

Country Status (7)

Country Link
US (1) US11569540B2 (en)
EP (1) EP3678217A4 (en)
JP (1) JP7036405B2 (en)
KR (1) KR102356350B1 (en)
CN (1) CN109952667B (en)
AU (1) AU2017437315B2 (en)
WO (1) WO2019080121A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110636746B (en) * 2019-09-17 2021-02-26 华为技术有限公司 Heat dissipation device and terminal equipment
CN110504400B (en) * 2019-09-26 2023-04-07 闻泰通讯股份有限公司 Battery fixing structure
CN111935341B (en) * 2020-07-15 2021-12-24 华勤技术股份有限公司 Easy-to-draw glue mounting structure and electronic equipment
CN112300723B (en) * 2020-10-31 2022-06-17 东莞新能德科技有限公司 Battery packaging film, battery pack using same and electronic device
EP4258442A4 (en) * 2021-02-01 2024-06-05 Samsung Electronics Co., Ltd. Battery structure and electronic device comprising same
KR20220110994A (en) * 2021-02-01 2022-08-09 삼성전자주식회사 Battery assembly and electronic device with the same
CN114616816B (en) * 2021-07-16 2023-04-11 荣耀终端有限公司 Electronic equipment
CN113818589B (en) * 2021-09-27 2022-09-16 宁波联兴市政园林工程有限公司 Heat-insulating wall structure and construction method thereof
CN114335663B (en) * 2021-12-17 2024-03-15 上海瑞浦青创新能源有限公司 Gradient utilization battery core, battery module and disassembly method of gradient utilization battery core
CN114883735B (en) * 2022-06-17 2024-10-15 维沃移动通信有限公司 Battery assembly and electronic device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105219286A (en) * 2015-07-29 2016-01-06 维沃移动通信有限公司 A kind of two-sided colloid and mobile terminal
CN205384821U (en) * 2015-12-31 2016-07-13 广州梁氏通讯电器有限公司 Protection label of demolising easily

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3120178U (en) 2006-01-11 2006-03-23 大阪シーリング印刷株式会社 Shrink package
JP2012006613A (en) 2010-06-23 2012-01-12 Toppan Printing Co Ltd Lid material
JP6288819B2 (en) * 2013-11-11 2018-03-07 藤森工業株式会社 Easy-open pillow packaging bag
JP6300626B2 (en) * 2014-04-30 2018-03-28 シャープ株式会社 Portable device
WO2015182050A1 (en) * 2014-05-30 2015-12-03 シャープ株式会社 Mobile device
WO2015186285A1 (en) * 2014-06-05 2015-12-10 三洋電機株式会社 Electronic apparatus, battery pack, and adhesive sheet
JP2017134887A (en) 2014-06-05 2017-08-03 三洋電機株式会社 Electronic apparatus, battery pack, and adhesive sheet
CN206388762U (en) * 2017-01-22 2017-08-08 惠州Tcl移动通信有限公司 A kind of battery fixing structure and electronic equipment
CN206451750U (en) * 2017-02-27 2017-08-29 东莞市富美印刷有限公司 A kind of bilayer cells dismounting diaphragm of special ink printing
CN107068938A (en) * 2017-06-06 2017-08-18 深圳市泰衡诺科技有限公司 Internal battery encapsulating structure and user terminal
CN207116488U (en) * 2017-07-13 2018-03-16 惠州Tcl移动通信有限公司 Battery protection film and battery

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105219286A (en) * 2015-07-29 2016-01-06 维沃移动通信有限公司 A kind of two-sided colloid and mobile terminal
CN205384821U (en) * 2015-12-31 2016-07-13 广州梁氏通讯电器有限公司 Protection label of demolising easily

Also Published As

Publication number Publication date
CN109952667A (en) 2019-06-28
KR20200056449A (en) 2020-05-22
US11569540B2 (en) 2023-01-31
KR102356350B1 (en) 2022-02-08
JP2021500698A (en) 2021-01-07
WO2019080121A1 (en) 2019-05-02
US20200266399A1 (en) 2020-08-20
JP7036405B2 (en) 2022-03-15
EP3678217A4 (en) 2020-10-14
AU2017437315A1 (en) 2020-04-23
EP3678217A1 (en) 2020-07-08
AU2017437315B2 (en) 2021-11-18

Similar Documents

Publication Publication Date Title
CN109952667B (en) Coating film, battery module and mobile terminal
CN218101574U (en) Wrapping film, battery module and mobile terminal
CN103887451A (en) Battery fixing structure and electronic device with battery fixing structure
TW201346497A (en) Fixing tube and electronic apparatus
CN206076338U (en) A kind of easily detachable built-in battery
CN215184227U (en) Battery coating film, battery pack and electronic device
CN112534606A (en) Electrode assembly and battery
CN208423036U (en) Battery core component and electronic equipment with it
CN110504400B (en) Battery fixing structure
CN106098999B (en) Battery structure and mobile terminal comprising same
CN205203758U (en) Protection film
CN107054873A (en) Integral type tears hand diaphragm
CN212375211U (en) Camera hole protection film
CN207250589U (en) A kind of battery fixing structure and mobile terminal
CN211420038U (en) Lithium battery protection film and lithium battery
CN213596195U (en) Battery protection film, battery pack and terminal equipment
CN219567855U (en) Viscose structure
CN221440669U (en) Conductive copper foil convenient to tear
CN221379566U (en) Battery protection film
CN219861153U (en) From taking protection film battery parcel easily to tear subsides
CN219457897U (en) Battery module and electronic equipment
CN215882912U (en) Protective film
CN221500944U (en) Packaging structure of toughened glass film
CN220290921U (en) Battery wrapping film and battery
CN211455796U (en) Battery protection film, battery module and mobile device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant